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+/*
+ * A loadable module that benchmarks the OCF crypto speed from kernel space.
+ *
+ * Copyright (C) 2004-2007 David McCullough <david_mccullough@securecomputing.com>
+ *
+ * LICENSE TERMS
+ *
+ * The free distribution and use of this software in both source and binary
+ * form is allowed (with or without changes) provided that:
+ *
+ * 1. distributions of this source code include the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ *
+ * 2. distributions in binary form include the above copyright
+ * notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other associated materials;
+ *
+ * 3. the copyright holder's name is not used to endorse products
+ * built using this software without specific written permission.
+ *
+ * ALTERNATIVELY, provided that this notice is retained in full, this product
+ * may be distributed under the terms of the GNU General Public License (GPL),
+ * in which case the provisions of the GPL apply INSTEAD OF those given above.
+ *
+ * DISCLAIMER
+ *
+ * This software is provided 'as is' with no explicit or implied warranties
+ * in respect of its properties, including, but not limited to, correctness
+ * and/or fitness for purpose.
+ */
+
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/version.h>
+#include <linux/interrupt.h>
+#include <cryptodev.h>
+
+#ifdef I_HAVE_AN_XSCALE_WITH_INTEL_SDK
+#define BENCH_IXP_ACCESS_LIB 1
+#endif
+#ifdef BENCH_IXP_ACCESS_LIB
+#include <IxTypes.h>
+#include <IxOsBuffMgt.h>
+#include <IxNpeDl.h>
+#include <IxCryptoAcc.h>
+#include <IxQMgr.h>
+#include <IxOsServices.h>
+#include <IxOsCacheMMU.h>
+#endif
+
+/*
+ * support for access lib version 1.4
+ */
+#ifndef IX_MBUF_PRIV
+#define IX_MBUF_PRIV(x) ((x)->priv)
+#endif
+
+/*
+ * the number of simultaneously active requests
+ */
+static int request_q_len = 20;
+module_param(request_q_len, int, 0);
+MODULE_PARM_DESC(request_q_len, "Number of outstanding requests");
+/*
+ * how many requests we want to have processed
+ */
+static int request_num = 1024;
+module_param(request_num, int, 0);
+MODULE_PARM_DESC(request_num, "run for at least this many requests");
+/*
+ * the size of each request
+ */
+static int request_size = 1500;
+module_param(request_size, int, 0);
+MODULE_PARM_DESC(request_size, "size of each request");
+
+/*
+ * a structure for each request
+ */
+typedef struct {
+ struct work_struct work;
+#ifdef BENCH_IXP_ACCESS_LIB
+ IX_MBUF mbuf;
+#endif
+ unsigned char *buffer;
+} request_t;
+
+static request_t *requests;
+
+static int outstanding;
+static int total;
+
+/*************************************************************************/
+/*
+ * OCF benchmark routines
+ */
+
+static uint64_t ocf_cryptoid;
+static int ocf_init(void);
+static int ocf_cb(struct cryptop *crp);
+static void ocf_request(void *arg);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+static void ocf_request_wq(struct work_struct *work);
+#endif
+
+static int
+ocf_init(void)
+{
+ int error;
+ struct cryptoini crie, cria;
+ struct cryptodesc crda, crde;
+
+ memset(&crie, 0, sizeof(crie));
+ memset(&cria, 0, sizeof(cria));
+ memset(&crde, 0, sizeof(crde));
+ memset(&crda, 0, sizeof(crda));
+
+ cria.cri_alg = CRYPTO_SHA1_HMAC;
+ cria.cri_klen = 20 * 8;
+ cria.cri_key = "0123456789abcdefghij";
+
+ crie.cri_alg = CRYPTO_3DES_CBC;
+ crie.cri_klen = 24 * 8;
+ crie.cri_key = "0123456789abcdefghijklmn";
+
+ crie.cri_next = &cria;
+
+ error = crypto_newsession(&ocf_cryptoid, &crie, 0);
+ if (error) {
+ printk("crypto_newsession failed %d\n", error);
+ return -1;
+ }
+ return 0;
+}
+
+static int
+ocf_cb(struct cryptop *crp)
+{
+ request_t *r = (request_t *) crp->crp_opaque;
+
+ if (crp->crp_etype)
+ printk("Error in OCF processing: %d\n", crp->crp_etype);
+ total++;
+ crypto_freereq(crp);
+ crp = NULL;
+
+ if (total > request_num) {
+ outstanding--;
+ return 0;
+ }
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+ INIT_WORK(&r->work, ocf_request_wq);
+#else
+ INIT_WORK(&r->work, ocf_request, r);
+#endif
+ schedule_work(&r->work);
+ return 0;
+}
+
+
+static void
+ocf_request(void *arg)
+{
+ request_t *r = arg;
+ struct cryptop *crp = crypto_getreq(2);
+ struct cryptodesc *crde, *crda;
+
+ if (!crp) {
+ outstanding--;
+ return;
+ }
+
+ crde = crp->crp_desc;
+ crda = crde->crd_next;
+
+ crda->crd_skip = 0;
+ crda->crd_flags = 0;
+ crda->crd_len = request_size;
+ crda->crd_inject = request_size;
+ crda->crd_alg = CRYPTO_SHA1_HMAC;
+ crda->crd_key = "0123456789abcdefghij";
+ crda->crd_klen = 20 * 8;
+
+ crde->crd_skip = 0;
+ crde->crd_flags = CRD_F_IV_EXPLICIT | CRD_F_ENCRYPT;
+ crde->crd_len = request_size;
+ crde->crd_inject = request_size;
+ crde->crd_alg = CRYPTO_3DES_CBC;
+ crde->crd_key = "0123456789abcdefghijklmn";
+ crde->crd_klen = 24 * 8;
+
+ crp->crp_ilen = request_size + 64;
+ crp->crp_flags = CRYPTO_F_CBIMM;
+ crp->crp_buf = (caddr_t) r->buffer;
+ crp->crp_callback = ocf_cb;
+ crp->crp_sid = ocf_cryptoid;
+ crp->crp_opaque = (caddr_t) r;
+ crypto_dispatch(crp);
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+static void
+ocf_request_wq(struct work_struct *work)
+{
+ request_t *r = container_of(work, request_t, work);
+ ocf_request(r);
+}
+#endif
+
+/*************************************************************************/
+#ifdef BENCH_IXP_ACCESS_LIB
+/*************************************************************************/
+/*
+ * CryptoAcc benchmark routines
+ */
+
+static IxCryptoAccCtx ixp_ctx;
+static UINT32 ixp_ctx_id;
+static IX_MBUF ixp_pri;
+static IX_MBUF ixp_sec;
+static int ixp_registered = 0;
+
+static void ixp_register_cb(UINT32 ctx_id, IX_MBUF *bufp,
+ IxCryptoAccStatus status);
+static void ixp_perform_cb(UINT32 ctx_id, IX_MBUF *sbufp, IX_MBUF *dbufp,
+ IxCryptoAccStatus status);
+static void ixp_request(void *arg);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+static void ixp_request_wq(struct work_struct *work);
+#endif
+
+static int
+ixp_init(void)
+{
+ IxCryptoAccStatus status;
+
+ ixp_ctx.cipherCtx.cipherAlgo = IX_CRYPTO_ACC_CIPHER_3DES;
+ ixp_ctx.cipherCtx.cipherMode = IX_CRYPTO_ACC_MODE_CBC;
+ ixp_ctx.cipherCtx.cipherKeyLen = 24;
+ ixp_ctx.cipherCtx.cipherBlockLen = IX_CRYPTO_ACC_DES_BLOCK_64;
+ ixp_ctx.cipherCtx.cipherInitialVectorLen = IX_CRYPTO_ACC_DES_IV_64;
+ memcpy(ixp_ctx.cipherCtx.key.cipherKey, "0123456789abcdefghijklmn", 24);
+
+ ixp_ctx.authCtx.authAlgo = IX_CRYPTO_ACC_AUTH_SHA1;
+ ixp_ctx.authCtx.authDigestLen = 12;
+ ixp_ctx.authCtx.aadLen = 0;
+ ixp_ctx.authCtx.authKeyLen = 20;
+ memcpy(ixp_ctx.authCtx.key.authKey, "0123456789abcdefghij", 20);
+
+ ixp_ctx.useDifferentSrcAndDestMbufs = 0;
+ ixp_ctx.operation = IX_CRYPTO_ACC_OP_ENCRYPT_AUTH ;
+
+ IX_MBUF_MLEN(&ixp_pri) = IX_MBUF_PKT_LEN(&ixp_pri) = 128;
+ IX_MBUF_MDATA(&ixp_pri) = (unsigned char *) kmalloc(128, SLAB_ATOMIC);
+ IX_MBUF_MLEN(&ixp_sec) = IX_MBUF_PKT_LEN(&ixp_sec) = 128;
+ IX_MBUF_MDATA(&ixp_sec) = (unsigned char *) kmalloc(128, SLAB_ATOMIC);
+
+ status = ixCryptoAccCtxRegister(&ixp_ctx, &ixp_pri, &ixp_sec,
+ ixp_register_cb, ixp_perform_cb, &ixp_ctx_id);
+
+ if (IX_CRYPTO_ACC_STATUS_SUCCESS == status) {
+ while (!ixp_registered)
+ schedule();
+ return ixp_registered < 0 ? -1 : 0;
+ }
+
+ printk("ixp: ixCryptoAccCtxRegister failed %d\n", status);
+ return -1;
+}
+
+static void
+ixp_register_cb(UINT32 ctx_id, IX_MBUF *bufp, IxCryptoAccStatus status)
+{
+ if (bufp) {
+ IX_MBUF_MLEN(bufp) = IX_MBUF_PKT_LEN(bufp) = 0;
+ kfree(IX_MBUF_MDATA(bufp));
+ IX_MBUF_MDATA(bufp) = NULL;
+ }
+
+ if (IX_CRYPTO_ACC_STATUS_WAIT == status)
+ return;
+ if (IX_CRYPTO_ACC_STATUS_SUCCESS == status)
+ ixp_registered = 1;
+ else
+ ixp_registered = -1;
+}
+
+static void
+ixp_perform_cb(
+ UINT32 ctx_id,
+ IX_MBUF *sbufp,
+ IX_MBUF *dbufp,
+ IxCryptoAccStatus status)
+{
+ request_t *r = NULL;
+
+ total++;
+ if (total > request_num) {
+ outstanding--;
+ return;
+ }
+
+ if (!sbufp || !(r = IX_MBUF_PRIV(sbufp))) {
+ printk("crappo %p %p\n", sbufp, r);
+ outstanding--;
+ return;
+ }
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+ INIT_WORK(&r->work, ixp_request_wq);
+#else
+ INIT_WORK(&r->work, ixp_request, r);
+#endif
+ schedule_work(&r->work);
+}
+
+static void
+ixp_request(void *arg)
+{
+ request_t *r = arg;
+ IxCryptoAccStatus status;
+
+ memset(&r->mbuf, 0, sizeof(r->mbuf));
+ IX_MBUF_MLEN(&r->mbuf) = IX_MBUF_PKT_LEN(&r->mbuf) = request_size + 64;
+ IX_MBUF_MDATA(&r->mbuf) = r->buffer;
+ IX_MBUF_PRIV(&r->mbuf) = r;
+ status = ixCryptoAccAuthCryptPerform(ixp_ctx_id, &r->mbuf, NULL,
+ 0, request_size, 0, request_size, request_size, r->buffer);
+ if (IX_CRYPTO_ACC_STATUS_SUCCESS != status) {
+ printk("status1 = %d\n", status);
+ outstanding--;
+ return;
+ }
+ return;
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+static void
+ixp_request_wq(struct work_struct *work)
+{
+ request_t *r = container_of(work, request_t, work);
+ ixp_request(r);
+}
+#endif
+
+/*************************************************************************/
+#endif /* BENCH_IXP_ACCESS_LIB */
+/*************************************************************************/
+
+int
+ocfbench_init(void)
+{
+ int i, jstart, jstop;
+
+ printk("Crypto Speed tests\n");
+
+ requests = kmalloc(sizeof(request_t) * request_q_len, GFP_KERNEL);
+ if (!requests) {
+ printk("malloc failed\n");
+ return -EINVAL;
+ }
+
+ for (i = 0; i < request_q_len; i++) {
+ /* +64 for return data */
+ requests[i].buffer = kmalloc(request_size + 128, GFP_DMA);
+ if (!requests[i].buffer) {
+ printk("malloc failed\n");
+ return -EINVAL;
+ }
+ memset(requests[i].buffer, '0' + i, request_size + 128);
+ }
+
+ /*
+ * OCF benchmark
+ */
+ printk("OCF: testing ...\n");
+ ocf_init();
+ total = outstanding = 0;
+ jstart = jiffies;
+ for (i = 0; i < request_q_len; i++) {
+ outstanding++;
+ ocf_request(&requests[i]);
+ }
+ while (outstanding > 0)
+ schedule();
+ jstop = jiffies;
+
+ printk("OCF: %d requests of %d bytes in %d jiffies\n", total, request_size,
+ jstop - jstart);
+
+#ifdef BENCH_IXP_ACCESS_LIB
+ /*
+ * IXP benchmark
+ */
+ printk("IXP: testing ...\n");
+ ixp_init();
+ total = outstanding = 0;
+ jstart = jiffies;
+ for (i = 0; i < request_q_len; i++) {
+ outstanding++;
+ ixp_request(&requests[i]);
+ }
+ while (outstanding > 0)
+ schedule();
+ jstop = jiffies;
+
+ printk("IXP: %d requests of %d bytes in %d jiffies\n", total, request_size,
+ jstop - jstart);
+#endif /* BENCH_IXP_ACCESS_LIB */
+
+ for (i = 0; i < request_q_len; i++)
+ kfree(requests[i].buffer);
+ kfree(requests);
+ return -EINVAL; /* always fail to load so it can be re-run quickly ;-) */
+}
+
+static void __exit ocfbench_exit(void)
+{
+}
+
+module_init(ocfbench_init);
+module_exit(ocfbench_exit);
+
+MODULE_LICENSE("BSD");
+MODULE_AUTHOR("David McCullough <david_mccullough@securecomputing.com>");
+MODULE_DESCRIPTION("Benchmark various in-kernel crypto speeds");
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